Revolving chase



June 1, 1937. H. A. PORl 2,082,718

REVOLV ING CHASE Filed May 12, 1936 Patented June I, 1937 UNITED STATES PATENT OFFICE Application May 12,

' 1 Claim.

My invention relates to a printing chase, and more particularly to a chase which may be employed for angle printing and it consists in the constructions, arrangements and combinations herein described and claimed.

It is the cardinal purpose of the invention to provide a chase which may be revolved to present the type at the angle desired and then looked in such position.

It is also a purpose of the invention to provide a revolving chase of few moving parts, requiring no special instruction for its operation, and so constructed that jamming of the moving part will not occur. I

Additional objects, advantages and features of invention will be apparent from the following description considered in conjunction with the accompanying drawing, wherein Figure 1 is a plan view of the chase constructed in accordance with my invention.

Figure 2 is a cross section on the line 2-2 of Figure 1.

Figure 3 is a side elevation of the chase proper.

In carrying out my invention I make use of a substantially rectangular frame ID, the interior of which is machined to provide an annular wall I l, and at diametrically opposite points in the sides of the frame In there are set screws [2, adjustable inwardly and outwardly of the wall I I.

A chase I3 is employed, the outer circumference of which is annular and of a size slightly less than the circumference defined by the wall II. The outer face of the chase l3 has formed therein a circumscribing groove l4, the groove being formed at a point approximately midway of the height of the face. The chase I3 is positioned within the annular wall II, the groove l4 being alined with the rounded ends of the set screws l2. The screws are adjusted to extend into the groove M to prevent lateral or vertical movements of the chase, yet permit free rotary movement of the chase within the frame H].

In order to firmly lock the chase in an adjusted position within the frame, a winged lock screw I5 is provided, in the present instance shown as being 1936, Serial No. 79,366

in screw-threaded engagement with a portion of the frame l0 and of a length so as to cause its end iii to impinge the walls defining the groove M. The end I6 is so shaped as to correspond to the groove formation so as to avoid liability of marring or disrupting the surface of the groove, and also acts to prevent lateral movement of the chase. Set screws I! may be employed for mounting of the chase frame.

The chase l3 has scale markings l8 thereon cooperable with zero marks IS on the frame l0, and by the use of these marks the chase may be revolved and locked at any angle desired.

In use, the type is assembled on a galley or in the square center 20 of the chase, exactly in the manner of straight composition. The type is locked in the chase by the use of standard quoins. The entire assembly may then be locked into the standard printing press chase ready for printing. However, it should be understood that the frame l0 can be made to the dimensions of the standard chase.

If the desired angle of print is known before the job is put on the press, the chase 13 may be revolved to the desired angle before it is mounted. If not, a proof, or a series of proofs may be taken, the locking screw l 5 loosened, the chase l3 rotated to the angle desired (as shown by the scale markings), and the chase then looked in suchposition by tightening the screws l5.

While I have shown and. described a preferred form of my invention, this is by Way of illustration only, and I consider as my own all such modifications as fairly fall within the scope of the appended claim.

I claim A chase comprising a frame member having an annular wall, an annular chase therein, the outer face of the chase having a circumferential groove, adjustable set screws carried by the frame and projecting into the groove for revolubly supporting the chase, and a lock screw in the frame member and projecting into the groove and adjustable thereinto to lock the chase against rotation.

HUGO A. PORI. 

